489 Case Crush Sleeve Question

You can mark the nut and count the threads. Put the new yoke on and put it back where it was plus 1/4 turn. If it doesnt go further. Then it has the eliminator
The 1/4 turn will compress the crush sleeve slightly again. Set up should be all good still. Have done it many times.

I just did the 7260 to 1350 like you are